| 摘要 |
PURPOSE:To mold a composite material component with a hollow cylindrical shape or a hollow shape without forming wrinkles on the outer surface and standing air inside. CONSTITUTION:A laminate of prepreg 2 of a composite material is formed on a cylindrical mandrel 1 made of a shape memory alloy deforming with temp. and the laminated prepreg of the composite material is covered with an air-permeable sheet 3 and a vacuum pack film 4 is covered thereon and the cylindrical mandrel is heated at a temp. being lower than m.p. of a resin forming the prepreg of the composite material to expand the cylindrical mandrel by an amt. of displacement (D2-D1) stored in the shape memory alloy and then, the laminated of prepreg of the composite material laminated on the cylindrical mandrel is molded by pressing, heating and curing. |
